EP3358110B1 - Tension fastener with closable lid - Google Patents

Description

The present invention relates to a cam lock with an operable in the mounted state of a door front side actuation, which is movable for actuating the closure by rotating between an open position and a closed position, and with a lid which is foldable about an axis parallel to a mounting plane of the cam lock closure axis wherein the lid is in the closed position on the actuation zuklappbar and wherein the cover in the interior has a matched to the operation lid contour, so that the unfolded lid is prevented at least in the open position of the operation by cooperation of the lid contour with the operation of closing.

A cam lock with the aforementioned features is made DE 20 2010 011 311 U1 known, in which the cover contour is formed so that the cover contour engages with the lid closed in the operation. However, this requires that the operation during assembly in an exact position in the housing is to be used.

The object of the present invention is therefore to at least partially solve the problems explained with reference to the prior art and to provide a cam lock with which the opening position of the Preselector is displayed by the lid, which does not require intervention of the lid contour in the operation.

The object is achieved by a cam lock with the features of the independent claim. Advantageous developments of the cam lock are given in the dependent claims and in the description, wherein individual features of the advantageous developments in a technologically meaningful manner and in accordance with the claims are combined with each other as desired.

The object is achieved in particular by a cam lock with the features mentioned, in which the lid contour is designed such that the operation located in the closed position can rotate out of the closed position with the lid closed.

The invention thus provides in its basic idea that in the closed position of the actuation an anti-rotation due to the interaction of the lid contour with the operation is not given. Rather, the cover contour and the operation should be designed so that when the lid is closed, the actuator can theoretically rotate relative to the lid contour. This is associated with the particular advantage that the operation does not necessarily have to be aligned in a predetermined position during assembly to the lid contour. At the same time, however, it is ensured that the lid can not be folded over the actuation after opening and transferring the actuation into its open position. In particular, therefore, the operation has no recess or the like, in which the lid contour could engage. Correspondingly, however, the cover contour has no projection or the like, with which they could engage in the operation.

In particular, the cover contour with its folded in the state of actuation facing and arranged in particular above a housing of the closure surface is formed part-ring-shaped.

In one embodiment of the invention can be provided that on the actuation an actuating contour is formed so that the unfolded lid is prevented upon rotation of the actuator from the closed position by cooperation of the lid contour with the actuating contour to a collapse, the actuating contour in particular by a annular segment-shaped collar is formed, which protrudes axially and / or radially from the rest of the shape of the operation, so that the unfolded lid is prevented by cooperation of the lid contour with the collar at a collapse. The actuation thus has a projecting from the rest of the form of projection design, which is matched with the lid contour so that at the lid closed the projection shape along the cover contour could be twisted at least theoretically together with the operation, while in the unfolded lid and rotated out of the closed position actuation the lid contour passes in a Zuklappvorgang in contact with the operating contour and is prevented from completely closing.

For this purpose, the actuating contour can in particular be designed such that the unfolded lid is prevented from closing already after a slight unscrewing of the actuation from its closed position. Alternatively, the actuating contour could also be designed so that the cover contour can come into contact with the actuating contour only after rotation of the actuator by a predetermined angle, for example of 90 degrees.

The collar extends in particular less than 180 degrees in the circumferential direction of the actuation, preferably less than 150 degrees.

In a further embodiment of the invention can be provided that the actuator moves during the rotational movement between the closed position and the open position in its axial direction and the unfolded lid on rotation of the actuator from the closed position by cooperation of the lid contour with the axially moving actuator is prevented from collapsing. How such an axial movement of the actuator relative to a housing can be achieved, for example, in DE 20 2013 104 526 U1 described. The deflector closure is in this context in particular set up so that the actuator during the rotational movement of the closed position in the open position in the axial direction moves out of the housing of the cam lock closure. The cover contour is accordingly set up such that it comes into contact with the actuation, at least in the open position and thus when the actuator moves axially out of the housing.

To protect the lid in its closed position against unintentional opening, it can be provided that the actuator has a radial projection and that a bar spring is arranged on the lid, which in the closed position of the actuator and the lid closed the projection for securing the Cover in the closed position engages behind. The projection is in particular formed in one piece on the actuator and protrudes in the radial direction over the remaining shape of the actuator. The projection may be formed in particular on the above-explained collar.

The projection is in particular arranged and formed on the actuator that the unfolded lid in the open position of the operation by cooperation of the lid contour with the projection on a collapse is hindered. The projection is preferably formed at a circumferentially arranged end of the collar so that when completely open operation, the lid contour can come into contact with the projection.

The cover is preferably spring-biased in particular with a torsion spring in the direction of its closed position.

The actuator is rotatably mounted in a housing and is in particular on the front side with a flange-like end on the housing. In particular, from this flange-like end of the collar is for the formation of the actuating contour. The lid is in particular hinged to the housing, wherein the folding axis extends both by appropriate receptacles on the lid and by the lid itself. The lid contour is formed in particular adjacent to the folding axis, so that the unfolded lid is relatively wide open in its hindered position at the folding. Thus, the opening position of the cam lock is easy to recognize the position of the lid.

Thus, an unintentional rotation of the operation, for example, by shaking, is prevented, the Vorreiberverschluss can be designed as a rotary clamping closure, wherein coupled with the operation of a closing shaft during the rotational movement of the actuator from the closed position initially performs an axial movement and then a rotational movement. In particular, at a front end of the closing shaft, a locking element is preferably arranged in the form of a locking tongue which locks the fitted with the cam lock door in the closed position under tension. The principal function of a rotary clamping lock is also off DE 20 2013 104 526 U1 known. Due to the clamping function the operation is secured in the closed position against unintentional rotation, for example by shaking.

In particular, the closing shaft is spring-biased relative to the actuator.

Fig. 1:

eine Explosionsansicht eines als Drehspannverschluss ausgebildeten Vorreiberverschlusses,

Fig. 2:

den Vorreiberverschluss in Schließstellung und bei zugeklapptem Deckel,

Fig. 3:

den Vorreiberverschluss bei aufgeklapptem Deckel in der Schließstellung und

Fig. 4:

den Vorreiberverschluss in einer Öffnungsstellung mit dem am Zuklappen gehinderten Deckel.

The invention and the technical environment are explained below by way of example with reference to FIGS. It show schematically

Fig. 1:

an exploded view of a trained as a rotary clamping closure cam lock closure,

Fig. 2:

the cam lock in the closed position and with the lid closed,

3:

the cam lock with the lid open in the closed position and

4:

the cam lock in an open position with the lid is closed at the collapse.

In the figures, designed as a rotary clamping closure shutter connector is shown, which comprises a housing 12 and a rotatably mounted in the housing 12 actuator 1. In the assembled state, the actuator 1 is located with its flange-like end on the end face of the housing 12. At this flange-like end, an actuating contour 5 in the form of a circumferentially extending collar 6 is formed which protrudes both radially and axially from the shape of the flange-like end. On the collar 6, an even more radially projecting projection 7 is also formed.

On the housing 12, a lid 2 is hinged about an axis 3, wherein the lid 2 is biased by means of the torsion spring 11 in the direction of its closed position. On the cover 2, a bar spring 8 is also arranged, which engages over the projection 7 on the collar 6 in the closed state, whereby the lid 2 is secured in the closed position against accidental opening.

The cam lock further comprises a nut 15, which is screwed onto the housing 12 from the back, so that a door leaf between the nut 15 and the front end of the housing 12 can be fixed.

The deflector closure is designed as a so-called rotary clamping closure, for which purpose in the actuator 1, a link guide 14 is formed, in which a in the assembled state a closing shaft 9 by cross pin 13 is guided. The closing shaft 9 is biased by a spring 10 to the actuator 1. In the housing 12, a projection structure, not shown, is also formed, which corresponds to a corresponding projection, not shown, on the closing shaft 9, so that a relative rotation of the closing shaft 9 is limited to the housing 12.

For an opening operation from the closed position of the actuator 1, the actuator 1 is first rotated counterclockwise, whereby the pin 13 is guided in the slide guide 14, so that the voltage applied to the projection on the projection design on the housing 12 closing shaft 9 axially from the Removed shutter housing, whereby a fastened to the closing shaft 9 locking element is lifted from a door frame. In a further rotation of the actuator 1 and the locking shaft 9 is then rotated, whereby the locking element, not shown, is rotated and the door is released.

In the closed position of the actuator 1, the cover 2 can be folded over the actuator 1, wherein the leaf spring 8 engages over the projection 7. This position is in FIG. 2 shown.

In the closed position of the actuator 1 according to Fig. 3 The collar 6 of the actuator 1 extends from a lower region in about 160 degrees counterclockwise. The actuating contour 5 thus formed and the lid contour 4 formed on the lid 2 are coordinated with one another such that in this position the lid 2 can be opened and also folded. The lid contour 4 formed on the lid 2 is designed with its, in the folded state inwardly directed, circular surface designed so that the outwardly directed surface of the collar 6 with the lid 2 closed along this inwardly facing surface of the lid contour 4 can be performed. A rotation of the actuator 1 is thus theoretically possible even with the lid 2 closed. By the closed lid 2 thus no rotation is given.

To initiate the opening process of the cam lock, the lid 2 must first be opened manually (see Fig. 3 ), so that the actuator 1 is accessible. To open the shutter now the actuator 1 must be rotated counterclockwise, the open position in Fig. 4 is shown. In this open position of the actuator 1, the lid 2 comes due to its spring bias by itself with the lid contour 4 in contact with the projection 7 of the actuating contour 5. The cover 2 is thus prevented from collapsing and thus also indicates the opening of the closure. But also in an intermediate position between in Fig. 3 illustrated opening position and in Fig. 4 shown closed position, the cover contour 4 would be prevented by the collar 6 at a collapse. The collar 6 and the lid contour 4 are formed so that the lid 2 is opened only in the closed position of the actuator 1 and can be completely closed. In an intermediate position in between the lid 2 can not collapse in any case. On the other hand, the lid contour 4 but is designed so that the actuator 1 could rotate along the lid contour 4 when the lid 2 is closed.

Reference numeral lists

1

activity

2

cover

3

axis

4

cover contour

5

actuating contour

6

collar

7

head Start

8th

bar spring

9

close shaft

10

feather

11

torsion spring

12

casing

13

pen

14

link guide

15

mother

Claims (10)

1. A sash fastener lock having an actuation (1) accessible in the assembled state from a door front side, which can be moved by rotation between an open position and a closed position for actuation of the lock, and having a cap (2), which can be folded about an axis (3) parallel to a fastening plane of the sash fastener lock, wherein the cap (2) in the closed position of the actuation (1) can be folded shut over the actuation (1) and wherein the cap (2) comprises in the inner region a cap contour (4) matched to the actuation, so that the unfolded cap (2), at least in the open position of the actuation (1), is prevented from folding shut by interaction of the cap contour (4) with the actuation (1), characterised in that the cap contour (4) is designed such that the actuation (1), when in the closed position, can be rotated out of the closed position when the cap (2) is folded shut.
2. The sash fastener lock according to claim 1, wherein an actuation contour (5) is formed on the actuation (1) such that the unfolded cap (2), when the actuation (1) is rotated out of the closed position, is prevented from folding shut by interaction of the cap contour (4) with the actuation contour (5).
3. The sash fastener lock according to claim 2, wherein the actuation contour (5) is formed by a circular ring segment-shaped collar (6), which projects axially and/or radially from the remaining shape of the actuation (1).
4. The sash fastener lock according to claim 3, wherein the unfolded cap (2), at least in the open position of the actuation (1), is prevented from folding shut by interaction of the cap contour (4) with the collar (6).
5. The sash fastener lock according to any one of the preceding claims, wherein the actuation (1) moves axially during the rotary motion between the closed position and open position and the unfolded cap (2), when the actuation (1) is rotated out of the closed position, is prevented from folding shut by interaction of the cap contour (4) with the axially moved actuation (1).
6. The sash fastener lock according to any one of the preceding claims, wherein the actuation (1) comprises a radial projection (7) and wherein a bar spring (8) is arranged on the cap (2), which bar spring, in the closed position of the actuation (1) and when the cap (2) is folded shut, engages behind the projection (7) for securing the cap (2) in the position folded shut.
7. The sash fastener lock according to claim 6, wherein the projection (7) is formed on the actuation (1) in such a way that the unfolded cap (2), in the open position of the actuation (1), is prevented from folding shut by interaction of the cap contour (4) with the projection (7).
8. The sash fastener lock according to any one of the preceding claims, wherein the cap (2) is spring-loaded in the direction of its position when folded shut.
9. The sash fastener lock according to any one of the preceding claims, wherein the sash fastener lock is designed as a rotary compression lock, so that a closing shaft (9) coupled with the actuation (1), during the rotary movement of the actuation (1) out of the closed position, first performs an axial movement and then a rotary movement.
10. The sash fastener lock according to claim 9, wherein the closing shaft (9) is spring-loaded with respect to the actuation (1).

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